package com.heima.wemedia.service.impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.wemedia.dtos.WmUserDto;
import com.heima.model.wemedia.pojos.WmUser;
import com.heima.utils.common.AppJwtUtil;
import com.heima.wemedia.mapper.WmUserMapper;
import com.heima.wemedia.service.WmUserService;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;
import org.springframework.web.multipart.MultipartFile;

import java.util.HashMap;

/**
 * @author 胡慧
 * @title: impl
 * @projectName heima-leadnews
 * @description: TODO
 * @date 2021/2/2023:06
 */
@Service
public class WmUserServiceImpl extends ServiceImpl<WmUserMapper, WmUser> implements WmUserService {
    @Override
    public ResponseResult login(WmUserDto dto) {
        //判断参数
        if (dto.getName() == null || dto.getPassword() == null) {
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID, "用户名或密码错误");
        }
        //查询用户比对密码
        WmUser wmUser = getOne(Wrappers.<WmUser>lambdaQuery().eq(WmUser::getName, dto.getName()));
        if (wmUser == null) {
            return ResponseResult.errorResult(AppHttpCodeEnum.DATA_NOT_EXIST);
        }

        String salt = wmUser.getSalt();
        String password = dto.getPassword();
        password = DigestUtils.md5DigestAsHex((password + salt).getBytes());
        if (password.equals(wmUser.getPassword())) {
            //    返回jwt
            HashMap<String, Object> map = new HashMap<>();
            map.put("token", AppJwtUtil.getToken(wmUser.getId().longValue()));
            wmUser.setPassword("");
            wmUser.setSalt("");
            map.put("user", wmUser);
            return ResponseResult.okResult(map);
        } else {
            return ResponseResult.errorResult(AppHttpCodeEnum.LOGIN_PASSWORD_ERROR);
        }
    }


}